IR-Sources for Gas Detection and Spectroscopy

Axetris’s Infrared (IR) source from Leister (Switzerland) is a preferred component for optical infrared analysers used in life saving medical instruments, automotive emission control devices and in demanding, safety-relevant applications in the oil & gas industry. Further applications include water analysis, breath alcohol testing and refrigerant monitoring. Integration into optical gas detection systems using Non- Dispersive Infrared Absorption (NDIR), photo acoustic (PAS) or attenuated total reflection (ATR) techniques allow the monitoring of gases such as CO2, CO, CH4, C2H4, NH3, H2S, SF6, NOx, SOx, CS2, VOC’s, H2O, N2O and many others. The IR source is a MEMS Chip-based black body emitter with broadband emission (2 to 14μm), high mechanical stability, high emissivity, low power consumption and long lifetime (>10 years). The exceptional modulation speed of up to 100 Hz and high modulation depth is a result of the low thermal mass of the heated micromechanical membrane.

Axetris offers a wide range of packaging options such as protective caps or reflectors combined with either sapphire, CaF2, BaF2 or Germanium coated windows. Custom beam shaping solutions and support from Axetris’s optical- and application engineering team enables system solutions, which are superior in terms of signal-to-noise, power efficiency and lifetime of the device.